Tecnologie
Kotlin is a general purpose, multi-paradigm, open source programming language developed by the software company JetBrains.
Kotlin is based on the JVM (Java Virtual Machine) and is inspired by other programming languages including Scala and Java itself, while additional syntactic ideas have been taken from classic languages, such as Pascal, and modern ones such as Go or F# . Development began in 2011 while a first public version of the compiler, in version 0.1, was published in January 2012. Kotlin is a statically and strongly typed language, and is particularly oriented towards object-oriented programming while also allowing full use of the functional approach.
Android is a mobile operating system developed by Google, designed primarily for embedded systems such as smartphones and tablets, with specialized user interfaces for televisions (Android TV), cars (Android Auto), watches (Wear OS), eyeglasses (Google Glass), and others.
It is based on the Linux kernel and is considered an embedded Linux distribution, not a Unix-like system or a GNU/Linux distribution (since almost all GNU utilities are replaced by Java software).
Distributed under the terms of the free Apache License 2.0 with the reservation of not including software covered by copyleft licenses, its development continues through the Android Open Source Project, which is free software with the exception of several non-free firmware packages included for device manufacturers and so-called “Google Apps”, such as Google Play.
iOS (formerly iPhone OS) is a mobile operating system developed by Apple Inc. for the iPhone, iPod touch, and iPad (until September 2019 with the release of iPadOS, the operating system that replaces iOS on supported models of the latter line of devices). It is the second most installed mobile operating system in the world, after Android. It is the basis for three other operating systems made by Apple: iPadOS, tvOS, watchOS.
Many use the term iDevice to refer to devices that use iOS. Every app on Apple mobile devices requires the iOS operating system to run; however, developers can simulate their applications using the Xcode development environment (available only for the macOS operating system).